8 Things We Want To See In The Arrow/The Flash/Legends Of Tomorrow/Supergirl Crossover

6) The Anti-Monitor

The Anti-Monitor is an incredibly powerful cosmic being who is perhaps best known for being responsible for the original Crisis on Infinite Earths. He controls the Antimatter Universe and wants nothing more than to destroy the positive matter Multiverse, killing untold billions in the process.  Bringing together all of these heroes demands a threat worthy of their attention, and with Zack Snyder’s Justice League franchise putting the focus on Darkseid and Apokolips, there’s definitely room for the Anti-Monitor to show up here.

The network has brought to life a fair few CGI baddies now, including Gorilla Grodd and King Shark, so a giant version of this character looming over the Central City wouldn’t be too much of a stretch. There’s another good reason as to why he should appear though, and that’s an adaptation of the storyline mentioned at the start of this slide: A Crisis on Infinite Earths.